Orchard-heater.



ing a heat of great intensity.

the fire-pot to the interior of the stack is regulated. An upright arm16, formed by turning at a right angle the end ofthe wire.VV

constituting the pintle of the hinge, has one end cf a forwardlyextending rod 17 pivotally connected thereto, and a hook or bill 18lformed at the front end of said rod is adapted to be directed iuto oneof a Aplurality of spaced holes 19, provided in an outwardly directedflange Q0 carried by the cover 6, for maintaining the damper in adjustedposition. y

For preventing lthe flame resulting from combustion of the gas withinthe stacky from dropping back to the surface ot the oil within thereservoir 4, a circular netting or screen 2l of wire is preferablyemployed, the same being removably seated upon the top of the conduit 8.Said screen has one or more openings, as 28, provided therein adjacenttoits periphery to permit of the pas- Sage therethrough of flame from thefireot 3i p Mounted at a'suitable point in the cover 2 over thereservoir is an upwardly tapered filling tube 23 which projects outwardthrough an opening 24 provided in the cover G. By removal of a coveringor c ap 25 provided for'said tube, thereservoir may be readily filled,or the fuel replenished without disturbing any of the heater parts and'without the necessity of extinguishing the fire. The lateral edges ofthe cover 6 are downwardly inclined and terminate in hooks 2G-which lareadapted to be sprunginto Aclasping engagement with the lateral edges orbeads 27 of the receptacle 1, as shown in Fig. 4.

In practice, the oil within the lire-pot is ignited, and the flame andheat resulting from the combustion are directed orwar between the covers2 and 6 and into the stack 7, sis/indicated lby arrows in Fig. 3,passing through the annular passage surrounding the conduit 8 andthrough the opening 28 in thev screen Q1. ln passing Vthrough therestricted passage between the covers 2. and (i much heat is absorbed bythe cover 2 and is thereby communicated to the oil inthe reservoir et,resulting in a rapid vaporization of said oil. The-,vapor or gas thusgenerated in the reservoir is conducted upward through the conduit 8 andnetting Qlrto the stack, wherein it meets the flame from the re-pot andis consumed, produc- As the gas passes through said conduit it becomesmixed with air admitted through the pipe 14. By adjustment of the damperl5 the combustion and amount of heat generated may be readilycontrolled, the rapidity of' combustion being dependent upon the volumeof air admitted past said damper. To extinguish the, fire in thefire-pot, said damper is completely closed.

'the heaters are prepared for shipment.

Having thus described my invention, what I claim as new, and desire tosecure b v Letters Patent, is-

l. An orchard heater comprising au oil receptacle, a fire-pot having anopening at its lower end -mounted within said rei-ep tacle, a covermounted upon said receptacle to prevent communication of flame from thefire-pot to the portion of said receptacle outside the fire-pot, asecondcover overlying the receptacle to afford a passageway :from the firepotover the first cover for the products of combustion, said second coverhaving an opening therein, a stack mounted about said opening, a gasconduit leading into said stack from the interior ot' the receptacle,and means supplying air to the conduit.

2. An orchard heater comprising an oil receptacle,l a tire-pot having anopen lower end mounted within said receptacle, a cover mounted upon saidreceptacle whereby comg munication of flame from the lire-pot to theportion of said receptacle out-side the fire-pot is prevented, a secondcover overlying the receptacle to afford a passageway from' the lire-potover the first cover for the productsv of combustion, said second coverhaving an Aopening therein, a stackV mounted onl the second cover aboutsaid opening, a gas conduit leading into said stack from the interior ofthe receptacle, means for supplying air to the conduit, and controllablemeans for admitting a draft through said passageway. y

3. An orchard heater comprising an oil receptacle, a' fire-pot mountedwithin said receptacle and having communication through its lower endwith the latter, a cover mounted upon said receptacle wherebycommunication of flame from the tire-pot to the portion of saidreceptacle outside the firepot is prevented, a second cover overlyingthe receptacle to afforda passageway from the fire-pot over the firstcover for the products ofcombustion, said second cover having an openingtherein, a stack mounted on thethrough its lower end with the latter, acover mounted upon said receptacle whereby communication of flame fromthe tire-pot to the portion of said receptacle outside the fire-pot isprevented, means whereby the products of combustion from said iirepotare caused to pass over said cover andfimpart heat to the oil in thereceptacle, a. conduit for gas leading from the'interior of said`receptacle, a stack encircling the mouth ot' said conduit and adaptedto receive the products of combustion from the fire-pot, and meanssupplying air to the'conduit for facilitating'combustion of gas withinthe stack. v

.5. An orchard heater comprising an yoil receptacle, an open fire-potseated within rsaid receptacle and having communication through itslower end with the latter, means covering the-portion of-said receptaclenot occupied 'by said pot, a conduit leading upward from the interior ofsaid receptacle through said covering means, a cover overlying saidreceptacle above said iire-pot and said covering means whereby a passagefor -tlie products'oi'f combustion from the fire-pot is constituted,said cover having an opening therethrough, a stack with which both saidpassage and said Vconduit communicate through said opening, and meanssupplying air Afor mixing with gas generated within the receptacie.

`6. An orchard heater comprising an oil receptacle,. an open fire-potseated within said receptacle and having communication through itslowerend with the latter, means covering the portion of said receptaclenot occupied by said pot, a conduit leading upward from` the interior ofsaid receptacle through said covering means, a cover overlying saidreceptacle above said fire-pot and said covering means whereby a passageAfor the products of combustion from the fire-pot is constituted, saidcover having an openingv a stack with which both said therethrougl saidconduit communicate passage an Vthrough said opening,- means supplyingair for mixing vwith gas generated within the receptacle, and draftregulating` means whereby combustion ofoil is controlled.

-' 7.' An orchard heater comprising an oil receptacle, an open re`-potseated within said receptacle and having communication through its lowerend with the latter, means coverinothe portion of said receptacle notoccupied by said pot, a conduit leading upward from the interiorof saidreceptacle `through said covering means, a cover overtherethrough, astack with which both said passage and said conduit communicate throughsaid opening, means supplying4 air for mixing with gas generated Withinthe receptacle, and means preventlng ignition through said conduit offuel within the receptacle.

8. An orchard` heater comprising an oil receptacle divided to form atire-pot and a reservoir, means supplying oil from saidl reservoir tosaid pot, means excluding from the reservoir iiame resulting tromcombustion in the pot, a conduit for gas leading ing air orinixing withthe gas, and draftregulatnig'ineans associated with said coverV wherebycombustion in the pot is controlled. 9.' An orchard heater comprising anoil receptacle divided to -form a tire-pot and areservoir, meanssupplying oil from said reservoir to said pot, means excluding trom thereservoir flame resulting from coinbusvtion in the pot., a conduit forgas leading from the reservoir through said Haine-excluding means, acover having an opening therein surmounting the reservoir and the potand aiiording a passage over the reservoir for the products ofcombustion in the pot, a stack mounted on said cover about saidopenii'ig, both said passage and said conduit having communication withsaid stack through said opening, means supplying air for mixing with thegas, draft-regulating means associated`-with said -covei wherebycombustion in the pot is controlled, and a shield located in encirclingrelation to the stack.

10. An orchard heater comprising ai oil receptacle divided to form atire-pot and a reservoir, means supplying oil i'i'oni said reservoir tosaid pot, means excluding from the reservoir flame resulting fromcombustion inthe pot, a conduit for gas leading from the reservoirthrough said flame-ex- Iluding means, a cover having an opening thereinsurinounting the reservoir and the pot and aiioidin g a passage over thereservoir tor the products of combustion` in the pot, a stach mounted onsaid cover about said opening, both said passage and said conduit havingcommunication with said stach through. said opening, means supplying airA,for mixing with the gas, tirait-regulating means associated with saidcover whereby combustion in the pot is controlled, and means .vherebythe vreservoir may be filled without removal of said cover. i

1l. An orchard heater comprising an oil receptacle, a ire-pot seatedwithin said receptacle, means for maintaining the oil iii the fire-potand in said receptacle at a uniform level, a cover for that, portion oftheA means and having communication through said opening with said path,a conduit lead,

ing through said cover for directing gas from the receptacle into saidstack, means preventing flame from passing downward 'through saidconduit, and means supplying air to the conduit.

l2. An orchard heater comprising an oil receptacle, a tire-pot seatedWithin said receptacle, means for maintaining the oil in the tire-potand in said receptacle at al uniform level, a cover for that portion ofthe receptacle not occupied by the fire-pot, means mounted over said'receptacle whereby the products of combustion from the fire-pot aredirected along a path in Contact with said cover, said means having anopening therein, a stack located over said directing means and Yhavingcommunication"through said opening with said path, a conduit leadingthrough said cover fordirecting gas from the receptacle into said stack,means preventingwiiame from passing downward through said conduit, meanssupplying air tothe conduit for Vfacilitating combustion in the stack,means for supplying air to the tire-pot, and an adjustable dampercontrolling the last mentioned means. i

V13. An orchard-heater comprising an oil receptacle, a fire-pot seatedwithin said re` ceptacle, means lfor maintaining the oil-in the {ire-potand iii-said receptacle at a uniform level, a cover for that portion ofthe receptacle not occupied by the fire-pot, a

second cover disposed over and at a distance vfrom therst cover wherebyis formeda passage for the products 'of combustion from, said tire-pot,said second cover having an opening therein, said passage lleading alongvthe top of said first cover, a stack disposed upon the .second coverabout said opening, f

said passage having communication `with said stack through said opening,a conduitv leading from the interior of the receptacle for conductinggas intov said stack, a pipe for conducting air into said conduit, andmeans associated with the second cover for controlling the rate of'combustion in the tire-pot. l

14. An orchard heater comprising an oil' receptacle, a lire-.pot seatedwithin said-i264" ceptacle, means for maintaining the oil in f' thetire-pot and in saidpreceptacle at a uniform level, a cover for thatportion of the receptacle not occupied by the fire-pot, a second coverdisposed over and at a distance from the lirst'eover whereby is formed apassage for theproducts of combustion from said re-pot, said secondcover having an l n c l i l. opening therein, said passage leading alongthe top of said first cover, a stack disposed upon the second ycoverabout said opening, said passageA having communication with said stackthrough said opening, a conduit leadingfrom the interior of'thereceptacle for conducting gas into said stack, a pipe for conductingair into said conduit, a wire netting disposed across themouth of saidconduit, and means for controlling the rate otcombustion inthe`lire-pot.

In testimony whereof, I aiiixfm'y signature inpaxesence of 4twosubscribing witnees.

VTHOMAS siLK.

lVitnesses H. E. DUNLAr, L. D. MORRIS.V

